Diagnostic Accuracy Rates of Appendicitis Scoring Systems for the Stratified Age Groups

Table 2

Distributions of variables regarding appendicitis in each age group.

		All patients		18–45 years old		46–65 years old		>65 years old
		App.	Without app.	App.	Without app.	App.	Without app.	App.	Without app.
Gender	Male	118 (91.5)	11 (8.5%)	85 (90.4%)	9 (9.6%)	20 (19.8%)	1 ((4.8%)	13 (92.9%)	1 (7.1%)
	Female	62 (83.8%)	12 (16.2%)	45 (81.8%)	10 (18.2%)	12 (92.3%)	1 (7.7%)	5 (83.3%)	1 (16.7%)
	value	0.09		0.12		0.72		0.5
Nationality	Native	176 (89.3%)	21 (10.7%)	127 (88.2%)	17 (11.8%)	31 (93.9%)	2 (6.1%)	18 (90%)	2 (10%)
	Foreign	4 (66.7%)	2 (33.3%)	3 (60%)	2 (40%)	1 (100%)	0 (0%)	0	0
	value	0.08		0.06		0.80		0.62
Fewer	No	169 (88%)	23 (12%)	122 (86.5%9	19 (13.5%)	31 (93.9%)	2 (6.1%)	16 (88.9%)	2 (1.1%)
	Yes	11 (100%)	0 (0%)	8 (0%)	0 (0%)	1 (100%)	0 (0%)	2 (100%)	0 (0%)
	value	0.22		0.26		0.80		0.62
Right lower quadrant pain	No	5 (83.3%)	1 (16.7%)	2 (66.7%)	1 (33.3%)	2 (100%)	0 (0%)	1 (100%)	0 (0%)
	Yes	175 (88.8%)	22 (11.2%)	128 (87.7%)	18 (12.3%)	30 (93.8%)	2 (6.3%)	17 (89.5%)	2 (10.5%)
	value			0.28		0.72		0.73
Severity of the pain	Mild	32 (86.5%)	5 (13.5%)	26 (86.7%)	4 (13.3%)	5 (83.3%)	1 (16.7%)	1 (100%)	0 (0%)
	Moderate	83 (87.4%)	12 (12.6%)	57 (85.1%)	10 (14.9%)	18 (94.7%)	1 (5.3%)	8 (88.9%)	1 (11.1%)
	High	65 (91.5%)	6 (8.5%)	47 (90.4%)	5 (9.6%)	9 (100%)	0 (0%)	9 (90%)	1 (10%)
	value	0.63		0.68		0.39		0.94
Pain outside the right lower quadrant	No	133 (89.3%)	16 (10.7%)	99 (87.6%)	14 (12.4%)	25 (96.2%)	1 (3.8%)	9(90%)	1 (10%)
	Yes	47 (87%)	7 (13%)	31 (86.1%)	5 (13.9%)	7 (87.5%)	1 (12.5%)	9 (90)	1 (10%)
	value	0.66		0.81		0.36		1
Increasing pain	No	92 (87.6%)	13 (12.4%)	69 (86.3%)	11 (13.8%)	16 (88.9%)	2 (11.1%)	7 (100%)	0 (0%)
	Yes	88 (89.8%)	10 (10.2%)	61 (88.4%)	8 (11.6%)	16 (100%)	0(0%)	11 (84.6%)	2 (15.4%)
	value	0.62		0.69		0.17		0.27
Pain transition from umbilicus to lower right quadrant	No	78 (83.9%)	15 (16.1%)	53 (81.5%)	12 (18.5%)	12 (93.8%)	1 (7.7%)	13 (86.7%)	2 (13.3%)
	Yes	102 (92.7%)	8 (7.3%)	77 (91.7%)	7 (8.3%)	20 (95.2%)	1 (4.8%)	5 (100%)	0 (0%)
	value	0.047		0.06		0.72		0.39
Vomiting	No	107 (86.3%)	17 (13.7%)	72 (82.8%)	15 (17.2%)	24 (96%)	1 (4%)	11 (91.7%)	1 (8.3%)
	Yes	73 (92.4)	6 (7.6%)	58 (93.5%)	4 (6.5%)	8 (88.9%)	1 (11.1%)	7 (87.5%)	1 (12.5%)
	value	0.18		0.05		0.43		0.76
Loss of appetite	No	49 (83.1%)	10 (16.9%)	33 (80.5%)	8 (19.5%)	10 (90.9%)	1 (9.1%)	6 (85.7%)	1 (14.3%)
	Yes	131 (91%)	13 (9%)	97 (89.8%)	11 (10.2%)	22 (95.7%)	1 (4.3%)	12 (92.3%)	1 (7.7%)
	value	0.10		0.12		0.58		0.23
Duration of symptoms (hours)	<24	94 (87%)	14 (13%)	73 (84.9%)	13 (15.1%)	13 (92.9%)	1 (7.1%)	8 (100%)	0 (100)
	24–48	45 (90%)	5 (10%)	34 (89.5%)	4 (10.5%)	6 (85.7%)	1 (14.3%)	5 (100%)	0 (100)
	>48	41 (91.1%)	4 (8.9%)	23 (92%)	2 (8%)	13 (100%)	0 (0%)	5 (71.4%)	2 (28.6%)
	value	0.73		0.57		0.41		0.12
Right lower quadrant pain with coughing	No	57 (87.7%)	8 (12.3%)	39 (84.8%)	7 (15.2%)	12 (92.3%)	1 (7.7%)	6 (100%)	0 (0%)
	Yes	123 (89.1%)	15 (10.9%)	91 (88.3%)	12 (11.7%)	20 (95.2%)	1 (4.8%)	17 (85.7%)	2 (14.3%)
	value	0.76		0.54		0.72		0.33
Bowel sounds with auscultation	None	19 (95%)	1 (5%)	15 (100%)	0 (0%)	3 (100%)	0 (0%)	1 (50%)	1 (50%)
	Normal	156 (89.1%)	19 (10.9%)	111 (87.4%)	16 (12.6%)	28 (93.3%)	2 (6.7%)	17 (94.4%)	1 (5.6%)
	Hyperactive	5 (62.5%)	3 (37.5%)	4 (57.1%)	3 (42.9%)	1 (100%)	0 (0%)
	value	0.04		0.2		0.86		0.47
Tenderness in right lower quadrant	No	6 (85.7%)	1 (14.3%)	3 (75%)	1 (25%)	2 (100%)	0 (0%)	1 (100%)	0 (0%)
	Yes	174 (88.8%)	22 (11.2%)	127 (87.6%)	18 (12.4%)	30 (93.8%)	2 (6.3%)	17 (89.5%)	2 (10.5%)
	value	0.80		0.45		0.71		0.73
Rebound	No	41 (87.2%)	6 (12.8%)	30 (83.3%)	6 (16.7%)	7 (100%)	0 (0%)	4 (100%)	0 (0%)
	Yes	139 (89.1%)	17 (10.9%)	100 (88.5%)	13 (11.5%)	25 (92.6%)	2 (7.4%)	14 (87.5%)	2 (12.5%)
	value	0.72		0.42		0.45		0.45
Rigidity	None	30 (81.1%)	7 (18.9%)	23 (76.7%)	7 (23.3%)	5 (100%)	0 (0%)	2 (100%)	0 (0%)
	Mild	29 (93.5%)	2 (6.5%)	23 (95.8%)	1 (4.2%)	5 (83.3%)	1 (16.7%)	1 (100%)	0 (0%)
	Moderate	74 (87.1%)	11 (12.9%)	52 (85.2%)	9 (14.8%)	15 (93.8%)	1 (6.3%)	7 (87.5%)	1 (12.5%)
	High	47 (94.0)	3 (6%)	32 (94.1%)	2 (5.9%)	7 (100%)	0 (0%)	8 (88.9%)	1 (11.1%)
	value	0.21		0.09		0.56		0.94
Rovsing sign	No	111 (87.4%)	16 (12.6%)	79 (84.9%)	14 (15.1%)	22 (95.7%)	1 (4.3%)	10 (90%)	1 (10%)
	Yes	69 (90.8%)	7 (9.2%)	51 (91.1%)	5 (8.9%)	10 (90.9%)	1 (9.1%)	8 (88.9%)	1 (11.1%)
	value	0.46		0.28		0.58		0.88
App. in USG	No	11 (61.1%)	7 (38.9%)	7 (53.8%)	6 (46.%)	3 (100%)	0 (0%)	1 (50%)	1 (50%)
	Yes	169 (91.4%)	16 (8.6%)	123 (90.4%)	13 (9.6%)	29 (93.5%)	2 (6.5%)	17 (94.4%)	1 (5.6%)
	value	0.00		0.00		0.65		0.04
Negative urine analysis	No	11 (84.6%)	2 (15.4%)	8 (80%)	2 (20%)	2 (100%)	0 (0%)	1 (100%)	0 (0%)
	Yes	169 (88.9%)	21 (11.1%)	122 (87.8%)	17 (12.2%)	30 (93.8%)	2 (6.3%)	17 (89.5%)	2 (10.5%)
CRP		23.1 ± 76.1	44.2 ± 73.9	18.8 ± 67.8	27.7 ± 57.6	32.8 ± 101.6	111.7 ± 31.4	74.8 ± 68.4	219.2 ± 37.8
	value	0.48		0.83		0.30		0.04
Leukocyte count		14485 ± 17677	13100 ± 3408	14950 ± 19751	12800 ± 3248	13800 ± 11692	10345 ± 4320	10700 ± 5134	16250 ± 2757
	value	0.05		0.01		0.21		0.16

App: appendicitis, CT: computerised tomography, CRP: C-reactive protein.